Lenses: Meniscus

Meniscus Lenses for CO2 Laser and IR Optics Systems

Meniscus lenses are designed to minimize spherical aberration producing a minimum focal spot size for incoming collimated light.

In addition to the standard focal lengths listed below, II-VI maintains an extensive inventory of test plates and tooling, resulting in no additional tooling charges for focal length fabrication.

Besides the plano-convex, meniscus, and aspheric lens shapes offered in this catalog,
II-VI routinely fabricates biconvex and negative focal length lenses upon request. Our in-house optical engineers can design the component or optical system which provides the exact performance you require. Please contact our sales and engineering staff for a quotation.


Specifications

Standards

Effective Focal Length (EFL) Tolerance

±2%

Dimensional Tolerance

Diameter: +0.000”-0.005”
Thickness: ±0.010”

Edge Thickness Variation (ETV)

<= 0.002”

Clear Aperture (polished)

90% of diameter

Surface Figure at 0.63µm

Varies depending upon radius

Scratch-Dig

20-10

AR Coating Reflectivity per Surface at 10.6µm

<= 0.20%



Part #

Description

Diameter
(inches)

Diameter
(mm)

Focal
Length
(inches)

Edge
Thickness
(inches)

Edge
Thickness
(mm)

247275

ZnSe

0.5

12.7

1.5

0.060

1.52

994141

ZnSe

1.0

25.4

1.0

0.085

2.16

350342

ZnSe

1.0

25.4

2.5

0.085

2.16

376587

ZnSe

1.0

25.4

5.0

0.085

2.16

566650

ZnSe

1.1

27.94

1.5

0.085

2.16

932739

ZnSe

1.1

27.94

2.5

0.085

2.16

801758

ZnSe

1.1

27.94

5.0

0.085

2.16

285767

ZnSe

1.5

38.1

2.5

0.085

2.16

507790

ZnSe

1.5

38.1

5.0

0.236

5.99

406294

ZnSe

1.5

38.1

5.0

0.290

7.37

767963

ZnSe

1.5

38.1

5.0

0.354

8.99

452726

ZnSe

1.5

38.1

7.5

0.125

3.18

784964

ZnSe

1.5

38.1

7.5

0.236

5.99

702232

ZnSe

1.5

38.1

7.5

0.290

7.37

570721

ZnSe

1.5

38.1

7.5

0.354

8.99

935669

ZnSe

2.0

50.8

5.0

0.100

2.54

695399

ZnSe

2.0

50.8

7.5

0.380

9.65

296875

ZnSe

2.0

50.8

10.0

0.100

2.54

490154

ZnSe

2.5

63.5

5.0

0.160

4.06

596352

ZnSe

2.5

63.5

7.5

0.160

4.06

286449

ZnSe

2.5

63.5

10.0

0.160

4.06